/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8                               :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2024 Justine Alexandra Roberts Tunney                              │
│                                                                              │
│ Permission to use, copy, modify, and/or distribute this software for         │
│ any purpose with or without fee is hereby granted, provided that the         │
│ above copyright notice and this permission notice appear in all copies.      │
│                                                                              │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
│ PERFORMANCE OF THIS SOFTWARE.                                                │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/calls/struct/sigset.h"
#include "libc/macros.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/sig.h"

int kSigs[] = {
    SIGHUP,     //
    SIGINT,     //
    SIGQUIT,    //
    SIGILL,     //
    SIGTRAP,    //
    SIGABRT,    //
    SIGBUS,     //
    SIGFPE,     //
    SIGUSR1,    //
    SIGSEGV,    //
    SIGUSR2,    //
    SIGPIPE,    //
    SIGALRM,    //
    SIGTERM,    //
    SIGCHLD,    //
    SIGCONT,    //
    SIGTSTP,    //
    SIGTTIN,    //
    SIGTTOU,    //
    SIGURG,     //
    SIGXCPU,    //
    SIGXFSZ,    //
    SIGVTALRM,  //
    SIGPROF,    //
    SIGWINCH,   //
    SIGSYS,     //
    SIGTHR,     //
};

sigset_t roundtrip(sigset_t mask) {
  npassert(!sigprocmask(SIG_SETMASK, &mask, 0));
  npassert(!sigprocmask(SIG_SETMASK, 0, &mask));
  return mask;
}

int main(int argc, char *argv[]) {
  // test __mask2linux() and __linux2mask()
  for (int i = 0; i < ARRAYLEN(kSigs); ++i) {
    int sig1 = kSigs[i];
    for (int j = i + 1; j < ARRAYLEN(kSigs); ++j) {
      int sig2 = kSigs[j];
      sigset_t mask = 1ull << (sig1 - 1) | 1ull << (sig2 - 1);
      if (roundtrip(mask) != mask)
        return 1;
    }
  }
}
